someone who stands in a circle with many other men and masturbates with them into the middle.
john is a circle jerker. he goes to circle jerk every saturday night.
A girl/woman who flirts her ass off with one of ya' boys, bein a cock tease, playin head games leading him on in anticipation, and/or screwing around with him sexually, then droppin him like an egg and doin the same shit with your other boys' in your tight knit "circle of friends"
Dude I cant believe you actually thought she liked you and was into you! She's goin around fucking with all of us!! She' just a fuckin' circle-jerker!!
A bunch of guys standing around nolan, and masterbating on his face.
Nolan didn't know what a circle jerker was, so a bunch of guys showed him, and he liked it a lot.
Your dad is such a circlejerker.